Hi,
I`m absoulte newbie to netfilter, but last year I set up my debian firewall. I tought it`s configuration is correct, but yesterday I found http://audiymypc.com which shows my real ip address which I wanted to hide. It shows the correct address too, but it seems my real local address is visible on the internet somehow.
This is my configuration:
# Generated by iptables-save v1.2.8 on Thu Nov 27 22:19:07 2003
*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
[0:0] -A POSTROUTING -o eth1 -j MASQUERADE
COMMIT
# Completed on Thu Nov 27 22:19:07 2003
# Generated by iptables-save v1.2.8 on Thu Nov 27 22:19:07 2003
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:block - [0:0]
[0:0] -A INPUT -j block
[0:0] -A FORWARD -j block
[0:0] -A block -i eth1 -p TCP -m state --state NEW -j ULOG --ulog-nlgroup 1 --ulog-prefix "Dropped TCP packet:"
[0:0] -A block -i eth1 -p ICMP -m state --state NEW,RELATED -j ULOG --ulog-nlgroup 1 --ulog-prefix "Dropped ICMP packet:"
[0:0] -A block -m state --state RELATED,ESTABLISHED -j ACCEPT
[0:0] -A block -i ! eth1 -m state --state NEW -j ACCEPT
[0:0] -A block -j DROP
COMMIT
# Completed on Thu Nov 27 22:19:07 2003
What did I wrong?
THX
kernel is vanilla 2.4.25-rc2 iptables is 1.2.9